BRISTLED TOOTHPICK WITH COVER
A toothpick assembly that is engaged with a cover and is movable between extended, partially extended and retracted positions relative to the cover. The toothpick assembly includes a base with first and second ends; a locking assembly provided at the first end of the base that secures the base to the cover; and a toothpick provided at the second end of the base. The toothpick includes first and second regions. The first region defines sinusoidal grooves in the side faces thereof and a row of bristles extending outwardly from each groove. The bristles are integrally formed with rest of the toothpick assembly and taper in length from the base and towards the second region. The second region is bristle-free and terminates in an upwardly curving tip. The first and second regions taper in width moving toward the tip so that toothpick is easily inserted into an interdental space.
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This is a Continuation-in-Part of U.S. patent application Ser. No. 14/063,288 filed Oct. 25, 2013, the entire disclosure of which is incorporated herein by reference.
BACKGROUND OF THE INVENTION1. Technical Field
This invention relates generally to dental products and their use. More particularly, this invention relates to a dental care product for removing food particles and plaque from interdental spaces. Specifically, the invention is directed to a toothpick having a tapered end which is triangular in cross-section and has bristles on two opposed faces. The bristles are configured in a serpentine wave on each face, are integrally formed with the rest of the toothpick, and extend outwardly from within recessed regions defined in the faces.
2. Background Information
Dental floss is used to remove residual food particles and plaque from the spaces between the teeth. Many people find floss difficult to use or they fail to use it in the most effective manner. Studies have therefore indicated that floss is not a particularly effective tool in preventing plaque build-up, gingivitis, and periodontitis. Toothpicks may be used to remove food particles from some spaces between the teeth but these devices typically do not clean the teeth effectively. Toothbrushes are also typically unable to penetrate far into and therefore clean the interproximal/interdental spaces adequately. The build-up of food particles and plaque in these spaces can lead to bad breath, infection and staining of the teeth. It is generally considered that if people have a dental care product which is both easy to use and effective, they will be more likely to include the use of that product in their daily dental routine.
In order to provide devices which clean interdental spaces, some have proposed adding bristles to toothpicks to make them more effective cleaning tools. For example, US Publication No. 2008/0251098 (Chen) discloses a toothpick which comprises a rod having bristles at one end. The tip of the rod is circular in cross-sectional shape and the bristles radiate outwardly from the circumferential exterior surface of the rod's tip. Bristles also extend outwardly and forwardly from the tip. One of the issues with this device is that because the bristles radiate outwardly in all directions, the bristles will come into contact with the gingiva when the toothpick is moved back and forth and up and down to remove food particles from the teeth and from the interdental space. The sandpapering effect of these bristles will irritate the gingival tissue. To address this problem, Chen has proposed coating the bristles with one of a variety of substances, such as toothpaste. The idea is that when these coated bristles contact the gingiva, the substance will help the bristles glide over the gingival tissue and thereby be less inclined to cut into and irritate that tissue. While this coating helps address the problems caused by raking the bristles over the gums, it does not completely eliminate this issue. Furthermore, the coating could also have the tendency to render the bristles slightly ineffective at cleaning food particles from the teeth because the coating acts as a lubricant which causes the bristles to easily glide across the food particles and tooth surfaces.
SUMMARYWhile many types of flossers and toothpicks have been fabricated to clean interdental spaces, there remains a need in the art for dental implements which are able to effectively remove plaque and food particles from interdental spaces.
The dental implement disclosed herein is provided for this purpose. A toothpick assembly that is engaged with a cover and movable between extended, partially extended and retracted positions relative to the cover is disclosed herein. The toothpick assembly includes a base with first and second ends; a locking assembly provided at the first end of the base that secures the base to the cover; and a toothpick provided at the second end of the base. The toothpick includes first and second regions. The first region defines sinusoidal grooves in the side faces thereof and a row of bristles extending outwardly from each groove. The bristles are integrally formed with rest of the toothpick assembly and taper in length from the base and towards the second region. The second region is bristle-free and terminates in an upwardly curving tip. The first and second regions taper in width moving toward the tip so that toothpick is easily inserted into an interdental space.
In one aspect, the invention may provide a toothpick assembly comprising a base having a first end and a second end; a locking assembly provided at the first end of the base, said locking assembly being adapted to secure the base to a cover; a toothpick provided at the second end of the base; wherein the toothpick includes a first region and a plurality of bristles extending outwardly from the first region. The plurality of bristles is integrally formed with the first region, and the base, locking assembly, first region and the plurality of bristles are a monolithic unitary component. The first region is generally triangular in cross-section and includes a first face and an apex opposite the first face; and a second face and a third faces extend from opposing ends of the first face to the apex; and wherein some of the plurality of bristles are provided on the second face and some of the plurality of bristles are provided on the third face.
A sample embodiment of the invention is set forth in the following description, is shown in the drawings and is particularly and distinctly pointed out and set forth in the appended claims.
Similar numbers refer to similar parts throughout the drawings.
DETAILED DESCRIPTIONReferring to
Referring to
Toothpick assembly 12 comprises a base, a locking assembly and a toothpick. The locking assembly is provided at one end of the base and the toothpick is provided at the other end of the base. Generally speaking, the locking assembly is located at the first end 12a of toothpick assembly 12 and a tip of the toothpick is located at the second end 12b of toothpick assembly 12.
The base may be of an inverted T-shape that includes a generally horizontally-oriented wall 16a and a generally vertically-oriented wall 16b. Wall 16b may be located centrally along a longitudinal axis “Y” (
As shown in
At the second end of the base opposite from arm 16d, wall 16a once again tapers in height (
As shown in
The bristles that form first row 18 of bristles may not be horizontally aligned with the bristles that form second row 20 of bristles. The bristles in the two rows 18, 20 may be staggered relative to each other. This is shown in
Referring still to
Because the bristles in first and second bristle rows 18, 20 are very small and thin, the recessed regions may take the form of a groove that is defined in each of the second or third faces 17b, 17c. This is illustrated in
Each of the first and second grooves 19, 21 may be serpentine or sinusoidal in shape and extend from a location proximate or in wall 16b to location spaced a short distance away from tip 16g. Grooves 19, 21 and therefore first and second bristle rows 18, 20 may not be laterally aligned with each other but may instead be laterally staggered or misaligned relative to each other. In other words, the left side surface and right side surface of toothpick assembly 12 may not be mirror images of each other. This lateral staggering or misalignment of first and second bristle row 18, 20 can be seen in
As best seen in
The sinusoidal pattern of first and second grooves 19, 21 and first and second bristle rows 18, 20 may ensure that more of the surface area of a tooth is cleaned than if the bristles were simply placed in a straight line along second and third faces 17b, 17c. It will be understood however, that the bristles may, alternatively, be placed in any other suitable pattern that will enable an increased surface area of a tooth to be more readily cleaned than if the bristles were simply placed in straight rows along second and third faces 17b, 17c. If the bristles are to be arranged in a different pattern than a sinusoidal pattern, then the associated recessed regions will be defined in a complementary pattern.
Instead of the recessed regions provided on toothpick assembly 12 being in the form of first and second grooves 19, 21, the recessed regions may comprise a plurality of individual dimples defined in second face 17b and third face 17c. In this instance each individual bristle in first and second bristle rows 18, 20 may arise within that portion of the faces 17b, 17c which defines the associated dimple and then extend outwardly from within the dimple. Alternatively, a few individual bristles may arise in each dimple and extend outwardly therefrom. The spaced apart dimples may be arranged in a sinusoidal pattern or in any other pattern that ensures that the side surfaces of the teeth bounding an interdental space will be brushed and therefore cleaned by the bristles. Any other type or shape of recessed region may be employed in toothpick assembly 12. So, for example, the recessed regions may take the form of a combination of grooves and dimples that are arranged in a sinusoidal pattern or in any other desired pattern.
Referring to
Referring now to
It will be understood that while toothpick assembly 12 has been described herein as having a bristle free region 16f that extends from the forwardmost end of the rows of bristles 18, 20, alternatively, the rows of bristles 18, 20 may extend all the way to the tip 16g, ever decreasing in size.
It will further be understood that while a single row of bristles is disclosed as being provided on each of the second and third faces 17b, 17c of bristled region 16e, more than a single row of bristles may be provided on these faces 17b, 17c.
In the foregoing description, certain terms have been used for brevity, clearness, and understanding. No unnecessary limitations are to be implied therefrom beyond the requirement of the prior art because such terms are used for descriptive purposes and are intended to be broadly construed.
Moreover, the description and illustration set out herein are an example and the invention is not limited to the exact details shown or described.
Claims
1. A toothpick assembly comprising:
- a base having a first end and a second end;
- a locking assembly provided at the first end of the base, said locking assembly being adapted to secure the base to a cover;
- a toothpick provided at the second end of the base; wherein the toothpick includes:
- a first region and
- a plurality of bristles extending outwardly from the first region.
2. The toothpick assembly as defined in claim 1, wherein the plurality of bristles are integrally formed with the first region, and wherein the base, locking assembly, first region and the plurality of bristles are a monolithic unitary component.
3. The toothpick assembly as defined in claim 1, wherein the first region is generally triangular in cross-section and includes a first face and an apex opposite the first face; and a second face and a third faces extend from opposing ends of the first face to the apex; and wherein some of the plurality of bristles are provided on the second face and some of the plurality of bristles are provided on the third face.
4. The toothpick assembly as defined in claim 3, wherein one or both of the first face and the apex are free of bristles.
5. The toothpick assembly as defined in claim 3, further comprising a first groove defined by the second face; and wherein the plurality of bristles includes a first row of bristles and the first row of bristles extends outwardly from within the first groove.
6. The toothpick assembly as defined in claim 5, wherein at least a portion of each of the plurality of bristles in the first row of bristles extends outwardly beyond an outer surface of the second face.
7. The toothpick assembly as defined in claim 5, wherein the first groove is sinusoidal.
8. The toothpick assembly as defined in claim 5, wherein the first face has a width measured from an intersection of the first face and the second face to an intersection of the first face and the third face; and wherein the width of the first face tapers as one moves away from the first end of the base and toward a tip of the toothpick.
9. The toothpick assembly as defined in claim 5, wherein the first groove is of a first configuration above the first row of bristles and is of a second configuration below the first row of bristles; and the first and second configurations are different.
10. The toothpick assembly as defined in claim 9, wherein one of the first and second configurations is generally U-shaped and the other of the first and second configurations is generally V-shaped.
11. The toothpick assembly as defined in claim 5, wherein the plurality of bristles that comprise the first row of bristles are longest proximate the base and decrease in length moving towards a tip of the toothpick.
12. The toothpick assembly as defined in claim 5, further comprising a second groove defined by the third face, and where the plurality of bristles includes a second row of bristles; and the second row of bristles extends outwardly from within the second groove.
13. The toothpick assembly as defined in claim 12, wherein the second groove is sinusoidal.
14. The toothpick assembly as defined in claim 12, wherein the first groove and the second groove are laterally staggered or misaligned relative to each other.
15. The toothpick assembly as defined in claim 12, wherein the first face is of a first width as measured between the second face and the third face; wherein the first region is of a second width as measured between an innermost region of the first groove and an innermost region of the second groove; wherein the second width is smaller than the first width; and wherein the second width tapers as one moves from the first end of the base towards a tip of the toothpick.
16. The toothpick assembly as defined in claim 1, further comprising a second region of the toothpick extending outwardly from the first region thereof; and wherein the second region terminates in a tip.
17. The toothpick assembly as defined in claim 16, wherein the second region is free of bristles.
18. The toothpick assembly as defined in claim 16, wherein the second region is generally triangular in cross-section.
19. The toothpick assembly as defined in claim 1, further comprising a cover; where the cover defines an interior chamber and the first end of the base is received within the interior chamber.
20. The toothpick assembly as defined in claim 19, wherein the locking assembly selectively secures the first end of the base to the cover in one of a first position, a second position and a third position; and when the base is in the first position, at least the second end of the base extends outwardly from one end of the cover; and when the base is in the second position, substantially all of the base is retained within the interior chamber defined by the cover; and when the base is in the third position, part of the base is retained within the interior chamber of the cover and part of the base extends outwardly from the one end of the cover.
Type: Application
Filed: Oct 21, 2015
Publication Date: Feb 11, 2016
Applicant:
Inventors: Zenovia Zmiyiwsky (Mississauga), Vera Zmiyiwsky (Mississauga), Robert G. Dickie (King City)
Application Number: 14/919,066